Tesla電池的劣化研究報告 - 汽車

Lucy avatar
By Lucy
at 2016-11-01T23:44

Table of Contents

http://i.imgur.com/N7BS8Ej.jpg

http://i.imgur.com/egysVzd.png

http://i.imgur.com/SvG7gjr.png

這份研究是由一群Tesla車主蒐集了286輛世界各地Model S的資料後

在Dutch-Belgium Tesla Forum上發布的

數據顯示大多數車輛在行駛了第一個50,000miles後電池容量會降低至95%

接下來電池劣化的程度會趨緩

而趨勢線顯示要行駛超過20萬miles後,電池容量才會趨近於90%


另外雖然數據不夠多,不過似乎一周用超級充電站充電兩次,每次充到90%是對電池最好的(?)
http://i.imgur.com/snGOeyD.png

這部分數據有點少,看看就好


底下也根據了循環次數還有使用日期做了類似的圖表:
http://i.imgur.com/lEjhrPp.png

http://i.imgur.com/wTSwd0S.png


最後他們的下一個目標是要看看行駛了100萬miles的電池組會發生什麼事

因為Tesla的設計是要讓這些車可以行駛100萬miles


開到30幾萬公里後電池才劣化到90%,我想這對大多數車主來說都夠本了

一年開1.5萬公里在台灣來說已經是平均以上

這樣也要開20年

對於電池劣化程度有疑慮的人可以好好參考一下這份情報

==============================================================================
https://goo.gl/w10wmF

Despite being one of the main concerns with potential new electric vehicle
buyers, battery degradation is starting to look less like an actual issue.
Earlier this year, we reported on new data showing very little capacity loss
over high mileage and now we have significantly more data backing this claim
through a new survey.

A group of Tesla owners on the Dutch-Belgium Tesla Forum are gathering data
from 286 Tesla Model S owners across the world and frequently updating it in
a public Google file.

The data clearly shows that for the first 50,000 miles (100,000 km), most
Tesla battery packs will lose about 5% of their capacity, but after the
50,000-mile mark, the capacity levels off and it looks like it could be
difficult to make a pack degrade by another 5%.

The trend line actually suggests that the average battery pack could go
another 150,000 miles (200,000 miles total) before coming close to 90%
capacity.

Despite a few outliers, the data looks consistent:

The study tried to explained the outliers with data on frequency of 100%
state of charge, use of Superchargers, and near full discharge.

It’s hard to get much out of the data at this point, but it seems that 90%
charge level appears to be the ideal daily charge level and surprisingly,
frequent Supercharging (twice a week to daily) appears to actually be
beneficial in preventing battery degradation.tesla-battery-degradation-6

Coming back to overall battery degradation. Looking at the data from a
mileage standpoint is probably the most simple way to interpret it, but it
can also be interesting to look at age and battery cycles.

They made similar charts using those metrics instead:

CEO Elon Musk once referred to a battery pack Tesla was testing in the lab.
He said that the company had simulated over 500,000 miles on it and that it
was still operating at over 80% of its original capacity. It sounds crazy.
The car itself is more likely to give up than the battery pack at this kind
of mileage, but based on this new data, it looks a lot more plausible.

The next step is a 1 million-mile battery pack. Considering Tesla is aiming
for its drive unit to last 1 million miles, it would make sense to have the
same goal for the battery pack.

Of course, it would take 80 years for an average driver to travel 1 million
miles, but that’s expected to change. With the advent of self-driving cars
and car sharing networks, like ‘Tesla Network‘, it is expected that cars
will travel a lot more miles in much shorter periods of time.

The capacity for a drivetrain to handle 1 million miles might sound like an
overkill now, but that may not be the case in the near future.

--
Tags: 汽車

All Comments

John avatar
By John
at 2016-11-02T05:38
滿強的
John avatar
By John
at 2016-11-06T04:54
BIW充到90%啊...(筆記) 謝謝分享
Bethany avatar
By Bethany
at 2016-11-08T13:49
充放電會劣化但時間一長也會劣化
Sandy avatar
By Sandy
at 2016-11-13T06:22
不管啦~會有馬粉跳出來用手機比
Cara avatar
By Cara
at 2016-11-15T04:01
TESLA電池不是已經有鎖前後20%了? 這樣沒必要只充90%吧
Ivy avatar
By Ivy
at 2016-11-15T10:06
他的意思是一週用超級充電站兩次嗎? @@
Thomas avatar
By Thomas
at 2016-11-19T06:44
Supercharging frequency = 超級充電站使用頻率?
圖看來天天充最好欸
Caroline avatar
By Caroline
at 2016-11-20T15:45
台灣至多兩個超級充電站吧QQ
Ophelia avatar
By Ophelia
at 2016-11-22T16:28
其實這樣自己在家裡充 大概電池壽命相對差咯 這篇結
Valerie avatar
By Valerie
at 2016-11-27T01:22
論說 可能是充電相同電量的時間相對短 讓電池熱的時
間短 因此壽命長 不知道能否推測 用80A充 比40A 對電
池還好?
Enid avatar
By Enid
at 2016-11-27T23:26
路邊有些充電站 只有20A左右欸 在電壓相同的狀況下
好像選電流越強的越好咯?
Sandy avatar
By Sandy
at 2016-12-02T15:19
這樣不就跟這篇結論相反?@-@
Dinah avatar
By Dinah
at 2016-12-07T03:40
8台90%以下的都在六萬公里以下
Hazel avatar
By Hazel
at 2016-12-10T18:05
也不用特地出遠門啦 放家裡故意幾天不餵食就好了
Quanna avatar
By Quanna
at 2016-12-11T16:20
真的不會抱怨嗎??
Audriana avatar
By Audriana
at 2016-12-12T07:16
數據推
George avatar
By George
at 2016-12-16T07:35
有數據推
Caroline avatar
By Caroline
at 2016-12-18T17:29
看完信心大增
Kama avatar
By Kama
at 2016-12-22T18:34
手機電池跟這個材料差異性不大吧,主要是循環問題吧
Kumar avatar
By Kumar
at 2016-12-24T10:57
那個跑20000公里就掉到85%的是買到車王?
William avatar
By William
at 2016-12-26T21:12
還有鋰電池應該是不用刻意放電再充
Dora avatar
By Dora
at 2016-12-29T05:46
呃呃 玩加速會壞也太悲劇 應該買的人很多會玩吧 可是
只有少數車王...
Lydia avatar
By Lydia
at 2016-12-30T17:21
那個2萬公里剩85%的 應該案例探討一下 是用法很特別
還是他特別衰
Anonymous avatar
By Anonymous
at 2016-12-31T18:26
http://case.ntu.edu.tw/blog/?p=25889
Catherine avatar
By Catherine
at 2017-01-04T15:58
慢速充電反而傷害電池
Faithe avatar
By Faithe
at 2017-01-08T22:14
感謝分享
Lydia avatar
By Lydia
at 2017-01-10T10:19
其實用手機電池相比並沒有問題,電動車電池跟手機電池是一
樣的東西,循環壽命其實也差不多。只是手機一年充放幾百
次,汽車幾十次,所以手機電池兩年就不堪使用了,而電動
車的電池壽命則可以超過20年,以循環壽命來看是差不多的,
只是以總壽命(可使用里程),電動車上是不太需要擔心電池
問題的。
Kumar avatar
By Kumar
at 2017-01-13T09:12
不只Tesla 手機的鋰電池充電接近滿電時也會降低充電電流
Rachel avatar
By Rachel
at 2017-01-15T03:23
看完這篇 對於電動車電池管理更有信心了
Lydia avatar
By Lydia
at 2017-01-15T13:01
我懷疑數字的真實性 首先特斯拉電動車里程超過50000英
里的有280輛? 對於只能定點開的車, 這個數字我覺得很奇
怪 ?
第二他說儲電能量值下降 5%, 小弟沒看過地表上有這種實
測數據的電池產品, 請問tesla怎麼測出來的?
Zanna avatar
By Zanna
at 2017-01-15T16:42
充滿電的可行駛里程?
Adele avatar
By Adele
at 2017-01-20T02:34
特斯拉一統江湖
Candice avatar
By Candice
at 2017-01-23T14:25
90D可以開500多km最好只能定點開... 而且2012到現在
也快四年了
Anonymous avatar
By Anonymous
at 2017-01-27T08:05
開車通勤的話一年超過15000mile很常見吧
Tracy avatar
By Tracy
at 2017-01-30T18:16

胎壓警示亮要馬上補嗎?

Frederic avatar
By Frederic
at 2016-11-01T23:37
板上還沒睡的大大好 小弟的車是Altis 2016 Safety 有TPMS胎壓警告 今早出門時看見有顆警示燈亮不知是胎壓 回家後翻書才知道,估計亮燈後大概開了60km 明天早上上班要再開40km,我應該現在去加油站充氣嗎? 又怕碰到故障的機器,沒充到氣反而漏氣atat - ...

一定要有的配件?

Skylar DavisLinda avatar
By Skylar DavisLinda
at 2016-11-01T23:03
隔熱紙 腳踏墊 鑰匙皮套 防盜鎖 晴雨刷 防水托盤 加油金 面紙盒 導航 顯影 行車紀錄器 保險... 買車有可能附帶或加價購的配件百百種 有沒有哪幾個是一定要有的 如果沒有就算要捏要加價也一定要有的? - ...

Audi 原廠中古車

Harry avatar
By Harry
at 2016-11-01T22:56
那來那麼多主管? 幾乎每台CPO都說是主管配車又是那招? 百講不膩耶... 就跟女用車一樣,保險便宜買女森名字就說是女森用車耶 還是有人要上當,講都講不聽 試乘車就是試乘車,給媒體上路測0-400亂呸der,或是上車臺狂拉轉測馬力/扭力用der 如果還要安慰自己是主管用車,那就當汽車媒體也算是業代的主管好惹 ...

第二年車險請益

Daph Bay avatar
By Daph Bay
at 2016-11-01T22:53
即將邁入第二年,業務先傳乙式車險明細,請教達人 1.是否有需要增減的項目? 2.目前正猶豫該選擇乙式或丙式? http://imgur.com/a/uKGCU 謝謝 - ...

Fiesta 1.0 菜單請益

Agatha avatar
By Agatha
at 2016-11-01T22:47
小妹近日想入手小車當代步工具 (週末新竹台中往返,平日上班走小山路) 最近試乘Fiesta 1.0 開起來頗為順手且過彎不減速也是穩穩過感覺不賴 此台車為家中第一部車 在版上爬文做功課看了許多熱心版友分享各種經驗及菜單 目前尚未和業務談過價錢 以下是我做完功課加上自己所需的菜單(含自費項目) 海馬腳踏墊 ...